Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Entering May, Rock Rapids sees a temperature rise, with the average high-temperature advancing from April's moderate 55.4°F (13°C) to a comfortable 67.6°F (19.8°C). Throughout May, Rock Rapids records an average temperature of 50.9°F (10.5°C) at night.Humidity
In Rock Rapids, the average relative humidity in May is 69%.Rainfall
In Rock Rapids, in May, during 16 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. In Rock Rapids, during the entire year, the rain falls for 119.2 days and collects up to 22.13" (562mm) of precipitation.Snowfall
Months with snowfall in Rock Rapids are January through May, October through December. May is the last month it regularly snows in Rock Rapids. During 0.3 snowfall days, in May, Rock Rapids aggregates 0.24" (6mm) of snow. In Rock Rapids, during the entire year, snow falls for 48.3 days and aggregates up to 19.29" (490mm) of snow.Daylight
The average length of the day in May is 14h and 43min.On the first day of May in Rock Rapids, sunrise is at 6:16 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:58 pm CDT.
Sunshine
The average sunshine in May is 8.6h.UV index
In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Rock Rapids in May?
What is the average humidity in May in Rock Rapids?
How much does it rain in Rock Rapids in May?
What is the last month it snows in Rock Rapids?
What is the average length of the day in May in Rock Rapids?
What time are sunrise and sunset in May in Rock Rapids?
How many hours of sunshine does Rock Rapids have in May?
What is the UV index intensity in May in Rock Rapids?
Average temperature in May
Rock Rapids, IA
- Average high temperature in May: 67.6°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (23°F).
- Average low temperature in May: 50.9°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (9.5°F).
Average pressure in May
Rock Rapids, IA
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
Rock Rapids, IA
- Average wind speed in May: 9.8mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in May
Rock Rapids, IA
- Average humidity in May: 69%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).
Average rainfall in May
Rock Rapids, IA
- Average rainfall in May: 2.83"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in May
Rock Rapids, IA
- Average rainfall days in May: 16 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in May
Rock Rapids, IA
- Average snowfall in May: 0.24"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Rock Rapids, IA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is December (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Rock Rapids, IA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Rock Rapids, IA
- Average sunshine days in May: 13.6 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in May
Rock Rapids, IA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Rock Rapids, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in May
Rock Rapids, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Rock Rapids, Iowa, USA
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